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In the production of masterbatch coloring material requirements

Categories: Latest NewsStars: 3Stars Visit: - Release time: 2015-09-01 09:37:00
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Color masterbatch coloring material, must pay attention to material and plastic raw materials, additives, the collocation of relationship between the choice of as described below.
(1) pigment and resin and all kinds of additives, solvent resistance, small mobility, good heat resistance, etc. In other words, masterbatch Not to participate in a variety of chemical reactions. Such as carbon black can control curing reaction of polyester plastic, so can't add carbon black material in polyester.
Because plastic products processing temperature is higher, so the pigment should be under the condition of forming heating temperature decomposition discoloration. General inorganic pigment has good heat resistance, organic pigment and dye heat resistance is poorer, this should cause enough attention when choosing color varieties.
(2) black masterbatch pigment dispersion, tinting strength should be good. Uneven pigment dispersion, will affect the appearance of the product performance; Pigment tinting strength is poor, can increase the dosage of pigment, the increased cost of materials. Same quality material in different resin dispersion and tinting strength is not the same, so it should be paid attention to when choosing pigment. Pigment particle size and dispersion relations, pigment particle size is smaller, the better dispersion, strong tinting strength.
(3) should know the other performance of the color, such as for use in food, children's toys, plastic products, require pigment should be non-toxic; Plastic products used in electrical appliances, should choose the color electric insulation material; Plastic products used in outdoor, should choose the pigment climate ageing resistance, etc.
Keywords in the article: color masterbatch